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Brums [2.3K]
3 years ago
14

F Suggest why insects visited flowers without petals.​

Biology
1 answer:
Nookie1986 [14]3 years ago
3 0

Answer:

Insects may visit them to collect pollen, but usually are ineffective pollinators and exert little natural selection on the flowers. Anemophilous, or wind pollinated flowers, are usually small and inconspicuous, and do not possess a scent or produce nectar. ... No bright colors, special odors, or nectar. Small.

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Microbial proteins with a strong specificity for a target cell that exert extremely powerful, and sometimes deadly, effects on t
Slav-nsk [51]

Toxins are microbial proteins with a strong specificity for a target cell that exert extremely powerful and toxic effects on that cell.

<h3>What are toxins?</h3>

Toxins are molecules that are produced by certain organisms which are deadly to other organisms when these organisms come in contact with them.

Toxins are produces mostly by microorganisms as well as some plants and animals such as fishes.

Toxins are mostly proteins products are usually specific for their targets cells.

Therefore, microbial proteins with a strong specificity for a target cell that exert extremely powerful, and sometimes deadly, effects on that cell are called toxins.

Learn more about toxins at: brainly.com/question/1235358

6 0
3 years ago
The branch of anatomy that studies the microscopic structure of tissues is A. physiology. B. histology. C. anatomy. D. biology.
baherus [9]
The answer is C. anatomy because anatomy is the study of structure while physiology is the study of how the function works either mechanically or etc.
5 0
3 years ago
Read 2 more answers
What is an example of an autotroph and a heterotroph?
drek231 [11]
Autotroph: Any kind of plant because they can create their own food.
Heterotroph: Humans because we can't create our own food.
8 0
4 years ago
❥SCIENCE SUBJECT
Fiesta28 [93]

9514 1404 393

Answer:

  • time: 1.122 seconds
  • range: 10.693 m
  • maximum height: 1.543 m

Explanation:

<u>Given</u>:

  runner is launched at 30° angle to horizontal at 11 m/s

  acceleration due to gravity is g = -9.8 m/s²

<u>Find</u>:

  runner's hang time

  runner's distance to the landing point

  runner's maximum height

<u>Solution</u>:

The (horizontal, vertical) speed components will be ...

  (11 m/s)(cos(30°), sin(30°)) = (5.5√3 m/s, 5.5 m/s)

The time of flight can be found from the height formula:

  h(t) = 1/2gt² +vt . . . . . . where v is the vertical speed at launch

The time we're concerned with is the time when h(t)=0 and t>0.

  0 = -4.9t^2 +5.5√3t = t(-4.9t +5.5√3)

The second factor is zero when ...

  t = (5.5√3)/4.9 ≈ 1.122 . . . seconds hang time

__

The distance to the landing point will be the product of horizontal speed and hang time:

  d = (5.5 m/s)(5.5√3/4.9 s) ≈ 10.693 m . . . . distance to landing

__

The maximum height can be found from the formula (based on conversion of kinetic energy to potential energy) ...

  h = v²/|2g| = (5.5 m/s)²/(2(9.8 m/s²)) ≈ 1.543 m . . . . maximum height

4 0
3 years ago
CAN SOMEONE PLS HELP ME ILL GIVE BRAINY AND A LOT OF POINTS ILL GIVE 100 IF YOU CAN ANSWER THIS QUESTION
kozerog [31]

Answer:im sorry but youre doomed

Explanation:

7 0
2 years ago
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