Answer:
population level
Explanation:
it ocurrs at the population level as scientists requires genetic variation between individuals of a population for natural selection
bones that surround the spinal cord are classified as
Answer:
the answer is vertebral bones
Explanation:
the vertebral bones surrounded our spinal cord and our skull acts as an internal crash helmet to protect our brain
Which aquatic ecosystem is often compared to a tropical rain forest why?
Answer:
Coral reefs is the answer.
Explanation:
Coral reefs are often called the "tropical rainforests of the sea" for their astounding richness of life. Due to their structural complexity, corals are one of the most productive ecosystems on Earth, providing important services to mankind including fisheries, coastal protection, medicines, recreation, and tourism.
Source: Internet
explain how a molecule of carbon dioxide from the atmosphere teaches the site of photosynthesis in a leaf
Answer: On the surface of the leaves of the plants there are a large number of tiny pores known as stomata or stoma. For photosynthesis green plants take carbon dioxide from the air. The carbon dioxide enters the leaves of the plant through the stomata present on their surface. Each stomatal pore is surrounded by a pair of guard cells.
Explanation:
In adolescent years, a person's sense of identity
A. Is still being developed.
B. has already been fully developed.
C. changes on a regular basis
D. is determined by his or her culture.
E. Other:
What particular organ or component of the body that is involved in regulating PH.
Answer:kidneys
Explanation:
it filters all liquad
One possible result of chromosomal breakage is for a fragment to join a nonhomologous chromosome. What is this alteration called
Answer:
A translocation
Explanation:
Describe a freshwater biome.
Define a wetland.
Why do wetlands have high biodiversity?
A developer wants to extend a golf course into a wetland. Outline environmental arguments you could make against this plan.
Freshwater biomes are large communities of plants and animals centered around waters with less than 1% salt concentration. They are very important to survival on Earth. Types of freshwater biomes include ponds, lakes, streams, rivers, and even some wetlands. Wetlands are not always considered freshwater biomes because they usually have too high of a salt content.
2.
Wetlands are areas where water covers the soil, or is present either at or near the surface of the soil all year or for varying periods of time during the year.
3.
Wetlands have been called “biological super systems” because they produce great volumes of food that support a remarkable level of biodiversity. In terms of number and variety of species supported, they are as rich as rainforests and coral reefs.
sorry last question i don't no
in the study of genetics the offspring of the p generation is referred to as the
Answer:
F1 Generation
Explanation:
In the study of genetics the offspring of the P generation is referred to as the F1 generation.
In the study of genetics, the offspring of the P generation are referred to as the F1 offspring, or first fillial offspring. Their genetic makeup depends on their parents.
What is inheritance?Inheritance explains how the genes from the parents pass down to the offspring. An example is when both parents are tall because they are purebred, then all the F1 offspring are tall.
The T is represented by tall, and the t is represented by short. TT is purebred tall, and tt is purebred short. When two parents (P generation) are heterozygous for tallness, such as Tt, each will produce gametes such as T and t. From these gametes, three types of individuals are formed, such as purebred tall (TT), heterozygous tall (Tt), and purebred short (tt). These are called F1 offspring.
Hence, in the study of genetics, the offspring of the P generation are referred to as the F1 offspring, or first fillial offspring.
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Put the following in order of complexity from least to most complex and explain your answers
virus, eukaryote, prokaryote.
Answer:
The main components of prokaryotic cells that we'll discuss are the cell membrane and cell wall, the propulsion mechanism, ribosomes, and DNA. Bacteria have a cell wall that surrounds the cell membrane. Eukaryotic cells, on the other hand, have only a cell
Explanation:
hope this helps I don't know Its correct answer
In sexual reproduction, will an offspring show a recessive trait if just one of its parents has recessive alleles for that trait? Explain your answer.
Answer:
No, they will not
Explanation:
In this question, we assume that the parents have genotypes of rr and RR (I use "r" out of convenience). If we cross both of these parents, it is impossible for any of the offspring to be rr like the one parent. They would all be heterozygous. If the other parent had a single recessive allele, then it would be possible.
Hope this helps!
(LO 1.6) Insulin
is usually broken down during glycolysis.
is a hormone released when blood (glucose) is high.
is hydrophobic.
is released when you are fasting (not eating).
is a channel for glucose found in the inner mitochondrial membrane.
Answer:
is a hormone released when blood (glucose) is high
Which are examples of active transport?
Select all that apply.
exocytosis
phagocytosis
diffusion
pinocytosis
Answer:
Exocytosis, phagocytosis, and pinocytosis
Explanation:
Active transport is when energy is used to move substances across the cellular membrane.
Exocytosis requires energy to remove materials from the cell; it is active.
Phagocytosis also requires energy; it is active.
Diffusion isn't active because it moves materials down their concentration gradient and therefore it doesn't require energy.
Pinocytosis is a form of endocytosis and requires energy; it is active.
One antibody type has thousands of antigen receptors on its cell surface. How many types of antigens will typically fit these receptors
Answer:
one
Explanation:
One gene in the human genome may be expressed at a much higher level than another. Can differences in types of cis elements present account for this
Answer:
No, CREs usually don't account for differences in gene expression levels.
Explanation:
Cis-regulatory elements (CREs) are non-coding DNA regions that regulate adjacent gene transcription. They usually do it by binding to transcription factors. They are in charge of influencing the rate of which transcription occurs, and less with how much a gene is expressed. On the other hand, trans-regulatory elements are DNA sequences that encode for upstream regulators that can modify or regulate gene expression levels.
Therefore, cis elements are not really in charge of expression levels, mostly transcription rates of single genes, rather. Trans elements are more involved in expression levels.
meiosis produces four genetically different haploid cells. Mitosis produces..
a) 4 genetically identical haploid cells
b) 2 genetically different diploid cells
c) 2 genetically identical diploid cells
d) 4 genetically different haploid cells
Answer:
c) 2 genetically identical diploid cells
NEED THIS ASAP Which of the following is (are) part of a systemic immune response?
I. A fever
II. An increase in white blood cells in the body
III. An inflammatory response
I only
II only
III only
I and II only
I, II, and III
Answer:
I, II, and III.
Explanation:
Immune response may be defined as the type of response generated by the body against the pathogens. The immune response is important to kill the pathogens.
Fever is a type of immune response generated to kill the pathogen by increasing the body temperature. The number of white blood cells of the body increases to fight against the pathogen. The inflammatory response may also generated to kill the pathogen.
Thus, the correct answer is option (E).
The ________________bone located in the ears is the smallest bone in our body.
STAPES......................
Answer: The stapes is the smallest bone in the human body
Explanation:
How did scientists prove that the food is transported through the phloem
Answer:
When a aphid is killing at the act of feeding then the body is carefull cut away but the proscis still inserted into the phloem then the food slowly exuded form cut end of the proboscis in the form of drops. These drops contain sugar and amino acids which means food is transported through phloem in plant.
The main sugar that photosynthesis produces is help me please ;(
Answer:
The answer is Glucose.
Hope that helps. x
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
What is the potential energy of a 10-kg book that is placed on a shelf that is 2.5 meters high?
The potential energy of the book is 245 J.
SOLUTION:We are given the following:
mass m = 10 kgheight above a reference point h = 2.5 mUse the formula for potential energy. ( g = 9.8 m/s² )
[tex] \qquad {\boxed{\sf P.E._{grav} = m \times g \times h}} [/tex]
[tex] \sf P.E._{grav} = (10\:kg) \times (9.8\: \frac{m}{s^2}) \times (2.5\:m) [/tex][tex] \sf P.E._{grav} = (10\:kg) \times (24.5\: \frac{m^2}{s^2}) [/tex][tex] \sf P.E._{grav} = {\boxed{\sf {245\:J}}} [/tex]Therefore, the potential energy of the book is 245 J.
HOPE IT HELPS!What happens to the neurotransmitter once an action potential is propagated on the muscle sarcolemma
Answer:
broken down by enzyme
Explanation:
It is immediately broken down by an enzyme. The opening of sodium channels is essential for the initiation of an action potential in the muscle cell membrane
Choose the correct response to this statement: Presynaptic neurons synapse on the ________ of the postsynaptic neuron.
Answer:
Cell or body dendrites
Explanation:
The cell which connects the whole body is called neuron cell and the tissue made up from the following is known as nervous tissue.
The correct answer to the following is left.
The synapse is made of the following:-
Cell endingDendriteThe signal transfer to the whole body is in form of electrical and chemical signals.
Hence, the correct answer is left to the postsynaptic neuron.
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The effects of this type of severe weather can include tress blown over by high winds, flooding caused by heavy rains, and damage to coastal areas caused by storm waves. What type of severe weather does this describe?
A. tornado
B. thunderstorm
C. blizzard
D. hurricane
Answer:
thunderstorm
Explanation:
Which of the following is NOT an accessory gland of the male reproductive system?
Answer:
a. Testosterone gland
Explanation:post protected
Testosterone gland is not an accessory gland of the male reproductive system.
What is Testosterone gland?Testosterone is a hormone that is primarily produced in the testicles in males and in small amounts in the ovaries and adrenal glands in females. It is a vital hormone that plays a critical role in the development of male reproductive tissues and secondary sexual characteristics, such as muscle mass, bone density, and body hair growth.
Testosterone is also essential for maintaining sex drive and overall physical health in both men and women. The production of testosterone is regulated by the hypothalamus and pituitary gland in the brain, which release signals to the testes to produce testosterone.
Certain medical conditions, lifestyle factors, and aging can affect testosterone production and levels, which can have significant impacts on health and wellbeing. Treatment options are available to address testosterone deficiencies and imbalances.
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what does the narroorator beleive has happened to the second black cat when he does not see the animal for several days
Answer:
can't answer that if we don't have context
define osmoregulation
Answer: OK!
Explanation: Osmoregulation is the active regulation of the osmotic pressure of an organism's body fluids, detected by osmoreceptors, to maintain the homeostasis of the organism's water content; that is, it maintains the fluid balance and the concentration of electrolytes (salts in solution which in this case is represented by body fluid) to keep the body fluids from becoming too diluted or concentrated.
Hope i helped! :D
Discuss 2 other ways that scientists believe
kingdoms should be divided.
Answer:
Plants and animals? ...The question says two OTHER ways, and I don't know what ways have already been listed.
Explanation:
The two main kingdoms in the animal kingdom are plants and animals.
Scientists also list four other kingdoms including bacteria, archaebacteria, fungi, and protozoa.
Hope this helps answer the question. Comment if you need further help!
Using specially designed bacteria to clean up environmentally hazardous radioactive waste would be an example of __________.
Answer:
xjsdhmbjv
Explanation:
Does the waxy cutie affect where acertain pla y could be grown? Why?
Waxy skin - some leaves have a thick, waxy skin on their surface. This reduces water loss by transpiration . Water storage - some plants, known as succulents, store water in their stems, leaves, roots or even fruits.
The waxy covering on plant leaves, young stems, and fruit is called the "cuticle". ... The purpose of this covering is to help the plant retain water. In arid regions, that is very important. In wetter regions, the waxy coating may help prevent infection by disease organisms.
Plants that grow in arid zones of USDA zones 9 to 11 use waxy leaves to limit transpiration and retain water but also to protect leaves from the frigid temperatures sometimes found in the desert. Trees like the desert willow (Chilopsis linearis) have narrow, waxy leaves and striking purple flowers.
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How do organisms remain highly organized in spite of the tendency toward entropy
Answer:Energy stored by organisms in organic molecules
Explanation: