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koban [17]
2 years ago
12

1. The body has different types of defences against pathogens.

Biology
1 answer:
lara [203]2 years ago
6 0
2and3 only are the defense
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2. What is the complementary DNA sequence for the following DNA strands? Write the sequence of the complementary strand below th
DaniilM [7]

Answer:

CGTATC - DNA complementary strand- GCATG

CTTTCAAG- DNA complementary strand-GAAAGTTG

GAGACTTAC-DNA complementary strand-CTCTGAATG

Explanation:

Remember that the complementary sequence will be based on base pairing for DNA, so the A will pair with T, C with G

6 0
2 years ago
How is density a source for deep ocean currents? HELP ASAP WILL MARK BRAINLIEST!!!!
Artyom0805 [142]

Answer:

Deep ocean currents Differences in water density, resulting from the variability of water temperature (thermo) and salinity (haline), also cause ocean currents. This process is known as thermohaline circulation.

Explanation:

5 0
2 years ago
Read 2 more answers
Pillbugs are placed in a container where they have a choice of a wet or a dry environment. Researchers record how much time was
alexdok [17]

Answer: Wet or dry environment.

Explanation:

<u>The independent variable is the variable that a researcher manipulates in an experiment in order to carry out a study on the incidence of the expression of the dependent variable.</u> Therefore, the independent variable is the one that changes or is controlled to see its effects on the dependent variable.

Researchers can then design a container with a wet or dry environment. But it's the pillbugs that are going to choose where to go and how long to spend in each part. So the time they spend in each part is a dependent variable since that cannot be controlled by the scientists conducting the experiment. Henceforth, the researches will just record this dependent variable without controlling it. But they can decide what to put in the container to make it wet or dry environment, or whatever they want to design. So wet or dry environment is the independent variable.

7 0
3 years ago
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what is the characteristic of a cell membrane that controls which substances can enter and exit the cell
lorasvet [3.4K]

Answer:

selective permeability

Explanation:

The property or characteristic of cellular membrane to allow certain substances to pass through the cell is known as selective permeability. The movement of molecules and ions across the cell can be active or passive.

3 0
2 years ago
Ethanol is an example of a biofuel. It is made from __________.
Murljashka [212]
Ethanol is a biofuel, which can <span>be fermented from various sources, but in United States, most of Ethanol is made from "Corn"

In short, Your Answer would be Option A

Hope this helps!</span>
3 0
3 years ago
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