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dsp73
3 years ago
7

Back in Darwin's time, people thought that animal species were what?

Biology
2 answers:
svet-max [94.6K]3 years ago
8 0
Back in Darwin’s time, people thought that animals sources were a nonhuman ancestors.
Rudik [331]3 years ago
8 0
Nonhuman ancestors is what Darwin thought
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Pls solve the biology questions
Harlamova29_29 [7]

Reviewing Main ideas

1. Replication assures that every cell has a complete set of identical, genetic information and makes a copy of the DNA so it can be passed to the new cell. ... DNA polymerase binds the nucleotides together and forms new strands complementary to each template.

2. DNA is a double helix. So during replication, it unwinds and separates into 2 strands. 1 strand will be called the non-coding and the other will be called the coding strand.

The non-coding strand will be the template for the new one.

3. The DNA Polymerase detects if there is an error, it removes the incorrect nucleotide and replaces it with the correct one.

Critical Thinking

4. The main function of DNA polymerase is to synthesize DNA from deoxyribonucleotides, the building blocks of DNA. ... By contrast, RNA polymerases synthesize RNA from ribonucleotides from either RNA or DNA. When synthesizing new DNA, DNA polymerase can add free nucleotides only to the 3' end of the newly forming strand.

5. Why is it important that human chromosomes have many origins of replication? because cells need to be copied quickly to replace cells in our bodies that have died, having many origins of replication helps the process happen faster.

The words that are in bold are the words you should write down. You don't have to write the whole thing. The other words are just for a better understaning.

4 0
3 years ago
Read 2 more answers
What does a scientist observe in a chemical's reaction rate? the speed at which the reactants change to products over a given ti
kvasek [131]

Answer:

The speed at which the reactants change to products over a given time.

Explanation:

A chemical's <u>reaction rate</u><u> is the change in the concentration of a reactant or a product with time (in moles per second)</u>.

Remember that during a chemical reaction, reactants are converted to products. Or what is the same, products are formed at the expense of reactants. This can be represented:

reactants → products

Therefore,<u> the progress of a reaction can be followed measuring the decrease in concentration of the reactants or the increase in concentration of the products.</u>

According to the temperature and other parameters, the reaction rate can increase or decrease.

8 0
3 years ago
Which is a gamete? A.Progesterone B.Testis C.Sperm D.Steroid
Sedbober [7]
C. Sperm is the answer
7 0
4 years ago
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The function of the _________<br> is to store fluids for the cell.
liubo4ka [24]

Answer:

vacuole.

Explanation:

The function of the vacuole is to store fluids for the cell.

6 0
3 years ago
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Osteoporosis is a condition in which the density of bones is decreased so much that the individual is at a higher risk of fractu
IRISSAK [1]

Answer:

A) Calcitonin injection

Explanation:

Parafollicular cells or C-cells of the thyroid gland produce a hormone which is involved in the regulation of calcium levels in the blood. This hormone is Calcitonin. It works in an antagonistic manner with the Parathyroid hormone (PTH). Calcitonin decreases the calcium level in the blood by increasing absorption of calcium ions in bones. In osteoporosis, when the patient is given the injection of hormone calcitonin, it produces and increase in bone mass because it negatively affects the rate of absorption of bone by the osteoclasts.

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3 years ago
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