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
Verdich [7]
3 years ago
15

Use what you know about natural selection to fill in the blanks in the hypothesis. It should answer the lab question, "What is t

he effect of the type of food available on the frequency of different types of bird beaks?" Hypothesis: If the type of food available changes, then…
Biology
2 answers:
Natali5045456 [20]3 years ago
7 0

the birds either starve or adapt to their new circumstances

77julia77 [94]3 years ago
6 0

If the type of food available changes, then . . . certain bird beaks will increase in frequency . . . because . . . selective pressures are forcing the birds to adapt to their changing environment and gradually evolve to fit their available food source(s).

You might be interested in
Compare and contrast the structure of prokaryotes and eukaryotes. Describe an organelle that is common to both prokaryotes and e
Liono4ka [1.6K]

Answer:

Eukaryotes are alive, but Prokaryotes aren't.

But both contain a <em>plasma membrane</em>, <em>cytoplasm</em> and <em>ribosomes</em>. Hope this helps!

7 0
3 years ago
Explain the global water crisis in your own words​
makvit [3.9K]

Explanation:

Water is the basic necessity of every human being. But, water scarcity is a major issue that is rising very rapidly in modern-day India. The problem has become so severe that in many states the groundwater has almost dried up and people have to depend on water supply from other sources. In addition, water is one of the most misused commodities that we still waste. It is the central point of our lives but not the central point of our focus.

In the past, people understand the value of water and plan their lives around it. Moreover, many civilizations bloom and lost on account of water. But, today we have knowledge but we still fail to understand the value of water.

Reason for Water Scarcity in India

Water scarcity is the cause of mismanagement and excess population growth of the water resources. Also, it is a man-made issue that continues to rise. Besides, some of the reasons for water scarcity are:

Wasteful use of water for Agriculture- India is one of the major food growers in the world. That produces tons of quantity of food to feed its population and export the surplus that is left.

In addition, producing this much food requires a lot of water too. The traditional method of irrigation wastes a lot of water due to evaporation, water conveyance, drainage, percolation, and the overuse of groundwater. Besides, most of the areas in India use traditional irrigation techniques that stress the availability of water.

But, the solution to this problem lies in the extensive irrigation techniques such as micro-irrigation in which we provide water to plants and crops using a sprinkler or drip irrigation.

Reduction in water recharge systems- Due to rapid construction that uses concrete and marbles do not let the rainwater to get absorbed in the soil. But, if we install some mechanism in our houses that can hold the rainwater then we can recharge the groundwater.

Lack of water management and distribution- There is a need for an efficient system that can manage and distribute the water in urban areas. Also, the government needs to enhance its technology and investment in water treatment. Besides, we should ensure optimization at the planning level.

Solutions to Overcome this Problem

Water-free urinal- Urinal waste around 6 liters of water per flush that add up to 25 thousand liters per year. If a male member of the house stops using the flush then they can save lots of water.

Close the running tap- During dishwashing and hand washing people often let the tap running. These running taps waste thousands of liters of water per year. Besides, closing the tap will reduce this problem.

Replace dripping taps- In India it is commonly seen that most of the houses have one or two taps that drop water even when they are close. This running tap wastes up to 30,000 liters of water that nobody bothers to change. So, we should replace these taps immediately.

To conclude, water scarcity has become a more dangerous problem day by day. Also, due to our leniency that we haven’t taken the problem water scarcity seriously. But, now the authorities and people are working to resolve this problem so that our future generations do not have to buy this necessity.

8 0
2 years ago
Passive transport defination
max2010maxim [7]

The movement of substances (as by diffusion) across a cell membrane without the expenditure of energy.

3 0
2 years ago
What is the answer for this question please help
Nezavi [6.7K]
The plant belongs to the group Angiosperm. Vascular plants with seeds could be cycads, Gingko, conifers, or angiosperms. Among those groups, only angiosperms have flowers.
The plant they found have colored, scented flowers which suggests that it could be pollinated by insects or birds. Colored flowers attract birds and insects. Color serves as a guiding mark. Talking of scent, it does not attract bird, but attracts insects. It also serves as the guiding mark.
7 0
3 years ago
Explain the two ways of estimating the ages of rocks and fossils
Sonbull [250]

Answer:

1. Relative dating

2. Absolute dating

8 0
3 years ago
Other questions:
  • What do the the skin, lungs, and digestive system do when drugs enter the system?
    7·1 answer
  • 7) The process of DNA replication occurs just before ______________. A) cytokinesis B) replication C) mitosis D) nucleosynthesis
    6·2 answers
  • Select all that apply. Which of the following are parts of a desert community? jack rabbit plankton beaver cactus crayfish
    9·1 answer
  • Primary growth or lengthening of plants results from mitotic division in cells of which tissue?
    11·1 answer
  • Biology. Carbohydrates.
    13·1 answer
  • The scientific method uses observation and what other process to answer a question
    7·1 answer
  • Anyone help edg hehdjskapaoa
    9·1 answer
  • Who first used the word cell to describe the basic structure unit of life?
    12·2 answers
  • Solve the system of equations.
    8·2 answers
  • Are all oxygen atoms the same? And why
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!