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otez555 [7]
2 years ago
6

Which describes the number of people who die per one thousand individuals in a population per year?

Biology
2 answers:
olchik [2.2K]2 years ago
7 0
The number of people who die per one thousand individuals in a population each year is d. Death rate.
aliya0001 [1]2 years ago
7 0
The answer is D..I’m pretty sure
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7. Why is it impossible for a parent with type AB blood to have a baby with type O blood?
maxonik [38]

Answer: This is because a parent with type AB blood has both A and B antigens therefore, the child must inherit either A or B antigen from the parent.

Explanation: In ABO blood type, blood types are classified on the basis of the antigens present in the red blood cells. There are two types of antigens: A and B antigens.

A blood type is so named because it has A antigens, B blood type has B antigens, AB blood type has both A and B antigens while O blood type has no antigens.

Each of these blood types is controlled by two alleles, and children inherit one allele from each parent. If a parent has AB blood type, none of his offsprings will have O blood type because each offspring must inherit either antigen A or B from this parent.

4 0
3 years ago
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What is the main thing that drives water to move up from roots through the stem or trunk and to the leaves in plants?.
Sergio039 [100]

As water molecules from plant leaves evaporate, they attract the water molecules that are still present in the plant, aiding in the movement of water from the roots up through the stems. The water in a plant is transported from the bottom to the top by the combined effects of transpiration and capillary action.

  • Water molecules ascend up the cellulose tubes from the roots to the leaves because they tend to cling together (cohesion) and stick to the walls of tubes (adhesion). The water from the leaves then evaporates, aiding in the root system's ability to absorb additional water. We call this mechanism capillary action.
  • Water and minerals travel upward from the roots through the xylem due to a negative water potential gradient created by the evaporation of mesophyll cells in the leaves. Small perforations between vessel elements must be made to reduce gas bubbles in the xylem since they can obstruct water flow in the plant.

Learn more about Xylem here:

brainly.com/question/17881747

#SPJ4

4 0
1 year ago
PLS HELP ASAP 50 POINTS AND BRAINLIEST USER
Kryger [21]

Plasma membrane - protect cell from it's surroundings. In both kinds of cells.


Cytoplasm - supports rounded cell structure, within it are all the organelles. Contains chemicals needed by the cell. In both kinds of cells.


Nucleus - contains DNA and is the control center of the cell. In both kinds of cells.


Nuclear envelope - surrounds nucleus, makes sure important molecules (DNA) stay within the nucleus. In both cells.


Nucleolus - makes ribosomes. In both cells.


DNA - genetic information for development and function. In both cells.


Rough ER - produces proteins. In both cells.


Smooth ER - makes and stores lipids (fats). In both cells.


Golgi body - sort and process macromolecules (proteins, lipids, etc). In both cells.


Ribosomes - makes proteins. In both cells.


Vacuoles - very large in plants, a storage center. In both cells.


Lysosome - digests and removes wastes. In both cells.


Mitochondria - energy powerhouse, produce ATP energy. In both cells.


Cytoskeleton - shapes, supports, and facilitates movement. In both cells.


Centrioles - cell division (form spindle fibers). Only in animal cells.


Cilia - movement for microorganisms. Only in animal cells.


Chloroplasts - photosynthesis, helps absorb sunlight and make food for the plant. Only in plant cells.


Cell wall - strength, structure, filters molecules going in and out of the cell. Only in plant cells.


Central Vacuole - holds materials and wastes, helps maintain proper pressure within the cell. Only in plant cells.


Hope this helps!

3 0
3 years ago
On the geological time scale, the Early and Late ____________ are subdivisions of the Cretaceous period.
fiasKO [112]
The first one for your answer
5 0
3 years ago
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School is school good for you
myrzilka [38]
Yes it is, He gives you a good education to prepare you for life
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