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OlgaM077 [116]
3 years ago
5

What causes continental drift and plate tectonics?

Biology
1 answer:
coldgirl [10]3 years ago
6 0
It's the built up pressure and heat inside the mantle of the earth
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Cells starting mitosis and meiosis begin with what set of chromosomes. True or False
Arisa [49]

Answer:

with haploid or diploid set of chromosomes. True

Explanation:

There are two types of cells in the body, haploid cells and diploid cells. The biggest difference is related to the number of chromosomes that each cell contains, while diploid cells contain two chromosomes (2n), haploid cells contain a chromosome (1n).

Features:

1. A haploid cell has only one set of chromosomes (n), while diploid cells have two sets of chromosomes (2n).

2. In humans, somatic cells are diploid, while gametes are haploid.

3. Diploid cells develop as a result of mitotic cell division, while haploid cells develop as a result of meiotic cell division.

4. Mitosis produces 2 identical daughter cells, where both stem and daughter cells are diploid. In meiosis, a diploid cell divides twice to produce 4 haploid daughter cells.

5. Humans and most animals are considered diploid organisms, while algae and fungi are examples of organisms that are haploid in most of their lives. Male bees, wasps and ants are also haploid.

5 0
3 years ago
What is the answer to question 1?
olganol [36]
Bacteria is the number 1 answers
8 0
3 years ago
Read 2 more answers
Which statements describe adaptations in cultural practices resulting from scientific influences? Check all that apply.
son4ous [18]

People update outdated cell phones by purchasing smartphone devices.

People purchase solar panels after reading about the effects of burning coal.

People start grocery shopping online as new grocery applications are published.

Options B, C and E.

<u>Explanation:</u>

The statements that are given here talk about the change in the cultural practices of the people with the incoming of the Science and technology in their life and having an advancement of technology.

Like when people change their devices which have gone outdated to replace them with the new ones, or changing ways of shopping things from the older to new and more modern methods is change in the cultural practices because of Science.

3 0
3 years ago
Read 2 more answers
In tomato's, red fruit (R) is dominant over yellow fruit (r). What is the probability that an offspring of plants that are heter
mihalych1998 [28]

Answer:

1 out of 4

or

25%

Explanation:

First we draw a Punnett Square for this:

          R      r

   R    RR    Rr

   r     Rr     rr

So here we have the following genotypes possible for this cross:

RR = homozygous dominant

Rr = heterozygous dominant

rr = homozygous recessive

As you can see out of the four (4) possible outcomes, one (1) of them is rr. So the probability is 1 out of 4 chances or 25%.

8 0
3 years ago
Placing pressure on a cut will constrict blood vessels manually, and encourages ________.
Makovka662 [10]
I am certain that placing pressure on a cut will constrict blood vessels manually, and encourages vascular spasms. 
Vascular spasms are sudden, brief tightening of the muscle cells inside the walls of a blood vessels. It is the first response as the blood vessels constrict to allow less blood to be lost. In the second step, platelet plug formation, platelet stick together to form a temporary seal to cover the break in the vessel wall, the third step is the coagulation or blood clotting. 
6 0
3 years ago
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