1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Airida [17]
3 years ago
9

Can someone help me with the blanks

Biology
1 answer:
vazorg [7]3 years ago
3 0

Answer:

19. mass and dustance between them.

You might be interested in
Suppose the DNA strand from the question above was exposed to
Nana76 [90]

Answer:

Substitution

Explanation:

Substitution

7 0
3 years ago
Describe how mutation and genetic recombination increase genetic variation
Gekata [30.6K]

Answer:

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Explanation:

Hope this helps.  

3 0
3 years ago
What part of the reproductive system is highlighted below?
adell [148]

Answer:

A. Urethra

Explanation:

The part highlighted below is also known as the Urethra, or the tube in which the urine or semen travels in the male reproductive system! :)

8 0
2 years ago
Insects are an important biological resource because they: A. enrich the soil with nitrogen. B. help control weeds and insect pe
FrozenT [24]

Answer: Option B.

Help control weeds and insect pests.

Explanation:

Insect are the largest group of organisms on Earth. They belong to the phylum arthropoda and class insecta. They have hard exoskeleton, antenna, they have three pairs of legs and their body is divided into head, thorax and abdomen.

Insects are biological resources in that they help control weeds and insects pest.

The insects are use as weed control in that they feed on the weeds i.e they use the weeds as food there by absorbing the nutrients for weeds development, which lead to their inability to survival. Some canivorous insects feed on insects pest i.e use they as food, thereby reducing their harmful effects in the ecosystem.

5 0
3 years ago
Read 2 more answers
During electrophoresis, DNA molecules can easily be separated according to size because all DNA molecules have the same charge–m
Tanya [424]

Answer:

To separate DNA using agarose gel electrophoresis, the DNA is loaded into pre-cast wells in the gel and a current applied.

Explanation:

The phosphate backbone of the DNA (and RNA) molecule is negatively charged, therefore when placed in an electric field, DNA fragments will migrate to the positively charged anode.

3 0
3 years ago
Other questions:
  • If a thylakoid were punctured so that its interior was no longer separated from the stroma, which of the following processes wou
    9·1 answer
  • Photosynthesis is important to living organisms because it is the foundation of most food chains. the source of nitrogen gas in
    13·2 answers
  • Which of the following best explains how the light reactions of photosynthesis generate ATP?
    10·1 answer
  • What is a principle of the fluid mosaic model of cell membrane structure?
    14·1 answer
  • What is one benefit of using tides for energy?
    9·2 answers
  • Which disappears more rapidly from a population, a deleterious dominant allele or a deleterious recessive allele?
    5·1 answer
  • When plasma Ca concentration decreases... 1. Parathyroid hormone level increases 2. Parathyroid hormone level decreases 3. Ca an
    13·1 answer
  • Can you please help me?
    6·1 answer
  • If you are walking on an island formed by an underwater volcano,
    14·2 answers
  • Use the drop-down menu to complete the sentence.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!